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Figure 2 | Breast Cancer Research

Figure 2

From: PIK3CA mutations, phosphatase and tensin homolog, human epidermal growth factor receptor 2, and insulin-like growth factor 1 receptor and adjuvant tamoxifen resistance in postmenopausal breast cancer patients

Figure 2

Numbers of patients per randomization group before and after interim analysis. Numbers of patients per randomization group before interim analysis (A) and after interim analysis (B), for the total subset of 563 ERα-positive patients. From 1989, based on two interim analyses showing a significant improvement in recurrence-free survival among lymph node-positive patients, these node-positive patients were all allocated to the tamoxifen treatment arm (that is, skipped the first randomization). Numbers of lymph node-negative patients are depicted in green. In red are depicted the numbers of lymph node-positive patients. LN neg, lymph node negative; LN pos, lymph node positive; R1, randomization 1; R2, randomization 2.

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